Heating systems in Brea, Fullerton, Placentia, Vila Park, Yorba Linda, Diamond Bar, Roland Heights, La Habra, Anaheim, Orange Park, Santa Ana, and other Orange County areas and other areas of southern California may not be used as often as cooling systems. However, this does not mean that they will not require regular maintenance, Filters, motors and thermostats should be inspected for damage to ensure that when you need your commercial heating system or your residential heating system that it will be in top working order.